Hoop-coiler.



No. 823,236. PATENTED JUNE 12, 1906.

A. F. WARD.

HOOP OOILER.

APPLICATION FILED 1330.30, 1904 2 SHEETS-SHEET 1.

PATENTED JUNE 12, 1906.

A. F. WARD.

HOOP GOILER.

APPLICATION FILED 1:20.30, 1904 2 SHEETS-SHEET 2.

. a n I a .WIII IIIII'II'vI-II" ALEXANDER F. WARD, OF MEMPHIS, TENNESSEE.

HOOP-COILER.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed December 30, 1904. Serial No. 238.931.

To all whom, it nuty concern:

Be it known that I, ALEXANDER F. WARD, a citizen of the United States, residing at Memphis, Shelby county, State of Tennessee,

have invented certaln new and useful Improvements in Hoop-Ooilers, of which the following is a specification.

My invention relates to improvements in hoop-coiling machines of the type described in my Patents No. 349,243, dated September 14, 1886, and No. 716,317, dated December 1 6, 1902, and has especial reference to means of throwin the hoop off when coiling has been comp eted by the same movement as that which releases the coiling or tension strap. Briefly described, the machine constituting the subject-matter of the firstnamed patent comprises a coiling-drum with which the hoops are adapted to be engaged, a surrounding tension-strap for pressing the hoop against the drum during the operation of coiling, and a weight operated through suitable intervening mechanism to' place a tension upon said strap. In operation the hoops are successively fed into engagement with the drum in the usual manner and coiled one upon the other between said drum and strap, after which the tension of the strap is released and the coiled hoops are pressed laterally o'fl from the coiling-drum. To relieve the tension on the strap, it is necessary to lift the weight either by a hand-lever or by power-driven mechanism controlled by the operator; but in machines as usually built the hand-lever alone is employed. In the latter-mentioned patent there is provided an improved mechanism for lifting the weight to relieve the tension on the coiling-strap.

The object of my present invention is to provide means whereby the lifting of the weight to relieve the tension on the coilingstrap will operate the device which throws the hoops off and will therefore throw off the hoops while the tension is relieved on the coiling-strap. I accomplish this object as will be more fully hereinafter set forth in the drawings, specification, and claims.

In the drawings, Figure 1 is an end elevation of the machine, showing my improvements applied. Fig. 2 is a side elevation of l the machine. Fig. 3 is a section on the line 111 111 of Fig. 2 to show the friction-clutch. Fig. 4 is a detail section of the coiling-weight and throwing-off cam. Fig. 5 is a corresponding plan.

Referring now to the drawings, in which fixed on said shaft.

' contact with the head P. T

the parts are indicated by letters, and confining the description at first to the release for the tension-strap, A is the frame of the machine, upon which is mounted a shaft B, carrying the coiling-drum C.

D is the power-shaft, journaled in the bearings mounted on the frame above the shaft B.

E is the friction-pulley, and F a cooperating friction-wheel on the shaft B.

G is a drive-pulley upon the shaft D, throu h which power may be imparted to said shaft from any suitable source.

H is a flexible tension-strap surrounding the coiling-drum C. One end of said strap is attached to an arm pivoted to the frame, while the other end is secured to a lever I on the shaft J, which shaft is j ournaled in the upper portion of the frame.

, K is a weight for applying tension to the strap H. This weight slides up or down in a das -pot L and is prevented by the said dashpot from dropping down quickly when it is released. K is an arm or rod extending upward from said weight, which arm carries a roller K. This rod extends throu a bearing K in a gist K of the frame an slides up and down freely in same. The upward motion of the rod is limited by a lug K (Shown dotted in Figs. 4 and 5.)

M is a pulley on the shaft J, to which a chain or strap N is attached, which forms the connection with the weight K. This strap or chain is attached to the pulley M, from which it passes to the weight K. On the opposite side a chain N extends downward to a winding-drum O, sleeved upon the shaft D. This drum is normally loose upon the shaft D and is arranged adjacent to a friction-head P,

The head P is preferably tapered, and the drum O is provided with a complementary tapering portion, so that the two form cooperating members of a fric-' tion-clutch. To en age the clutch, the drum O is moved lon itu inally upon the shaft, so as to be pressed into frictional contact with the head P. This may be accomplished by arranging the drum O adjacent to a stationary bearing Q for the shaft D and between the two placing a revoluble collar R, having a cam bearing upon the bearing Q. This collar R is connected by a link S to a foot-lever T, by means of which the collar may be partially rotated, so as to press the'drum O in is a weight on the lever T, which may be adjusted to give sufficient pull on the collar R to keep the drum 0 and the head P in such frictional re lation that the chain N is always kept taut, though not sufficient to exert an appreciable pull on the weight K. A modification of this is shown by the dotted lines in Fig. 3, 1n which a rod S is substituted for the rod S and a hand-lever T for the foot-lever T.

T is a sliding weight similar to the weight T and for the same purpose.

U is a weighted cam secured on a rockshaft V, which shaft is journaled in the main frame and carries on each end a crankarmW, which arms are keyed thereto.

X represents rods connecting the arms W with a cross-head Y, which is fastened to the shaft B.

Mounted on the shaft B is the throw-off yoke Z, which has prongs Z, which slide through the face of the coiling-disk C which disk carries the coiling-drum C. This yoke Z, mounted on the shaft B, has no longitudinal motion thereon, but is moved longitudinally thereby. Normally it is held retracted, as shown, by the weight-cam U. The said cam U is adapted to be engaged by the roller K on the rod K and to be rotated by the said roller to move the crank-arm W.

U is a stop faced with rubber U which stop comes against the lower side of the cross-piece K of the frame and stops the rotation of the cam U at the moment when the roller K (descending) reaches the position K a and supporting the cam in this position during the further descent of the said weight. In addition to the weight of the cam U acting to restore it to its normal positiont'. 0., that shown in Fig. 4Lan auxiliary cam U integral with the cam U, is acted on by the roller K as it descends, and the entire weight K is brought into play to rotate same and through the shaft B, the arms W, connecting-rods X, &c., to retract the throw-off yoke Z. This action is such that it constitutes a positive method of withdrawing the yoke Z when the weight K descends.

In operation a strip of wood of dimensions,

say, three-eighths inch by one and one-fourth inches by sixty inches is first properly prepared in the usual manner, and one end is placed in the opening C in the coiling-drum C. The drum is then set in motion counterclockwise and the strip of wood wound round the coiling-drum, being effectually held against the drum by the coiling-strap H, ten sion on which is provided by the weight K. Additional strips are inserted without checking the rotation of the machine and are successively coiled around the outside of the coil until what is known as a coil of hoops has been formed. When this becomes sufficiently large, a lever C is depressed to hold the end of the last hoop down until it may be nailed. When the nailing has been accomplished, the coil must be removed to make room for a new one. During the formation of the coil the strap H has been pushed outward from the drum C and is firmly in contact with the outer surface of the coil. The arm I has been drawn downward by this action and the weight K raised. As the weight K rises the chain N would necessarily loosen but for the fact that the friction P has been set up sufficiently tight to rotate the drum 0 and keep the slack wound up, the friction, however, not being sufficient to cause the drum 0 to raise the weight K. When the coil is of sufficient size, the coiling-drum is stopped, as before mentioned, and the coil nailed together. The operator then places his foot on the step of the lever T, and thereby throws the friction P into action and sets the drum 0 in motion to wind up the chain N. This action continues the raising of the weight K and at the same time releases the tension on the strap H and pushes same away from the coil. When the roller K on the weightarm reaches the position K it engages the cam U and rotates it thus through the rocker-shaft V, &c., as before mentioned, actuating the throw-ofi yoke Z and pushing the coil from the coiling-drum C. Releasing the lever T permits the weight K to drop and in descending to positivelyrotate the cam U and withdraw the throw-ofi yoke Z, the dash-pot L lowering the weight slowly. It will be seen that by my improvement the action of releasing the tension-strap if continued will throw 0H the coil and that the former action must govern the latter.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent in the United States, is

1. In a hoop-coiling machine, the combination with a coilingdrum, a tension-strap surrounding said drum, a weight to keep said strap taut, and means for raising said weight to relieve the tension on said strap and permit the removal of a completed hoop-coil, of means operated by said weight for throwing off said coil.

2. In a hoop-coiling machine, the combination with a coiling-drum, a tension-strap surrounding said drum, a weight to keep said strap taut and means for raising said weight to relieve the tension on said strap, of a throw-off yoke, and means operated by the raising of said tension-weight to operate said yoke and throw off said hoop-coil.

3. In a hoop-coiling machine, the combination with a coiling-drum, a tension-strap surrounding said drum, a weight to keep said strap taut and means for raising said weight to relieve the tension on said strap, of a throw-off yoke, an arm operatively connected to said yoke and means operated by the raising of said tension-weight to operate said arm, for the purposes set forth.

4. In a h0op-coiling machine, the combination with a coiling-drum, a tension-strap IIO surrounding said drum, a weight to keep said strap taut and means for raising said weight to relieve the tension on said strap, of a throw-0E yoke, an arm operatively connected to said yoke, a weight connected to said arm to hold said yoke retracted, said weight coacting with said tension-Weight to operate said yoke, for the purposes set forth.

5. In a hoop-coiling machine, the combination with a coiling-drum, a tension-strap surrounding said drum, a weight to keep said strap taut and means for raising said Weight to relieve the tension on said strap, of a throw-oif yoke, an arm operatively connected to said yoke, a weight connected to said arm to hold said oke retracted, and a cam attached to said weight and coacting with said tension-weight to operate said yoke, for the purposes set forth.

6 In a hoop-coiling machine, the combination with a coiling-drum, a tension-strap surrounding said drum, a weight to keep said strap taut, and means for raising said Weight to relieve the tension on said strap, of a throw-off oke, a cam operatively connected to said yo e, an arm extending upward from said wei ht and a roller on said arm coacting with sai cam for the purposes set forth.

7. In a hoop-coiling machine, the combination with a coiling-drum, a tension-stra surrounding said drum, a weight to keep sai strap taut and means for raising said Weight to relieve the tension on said strap of a throwoff yoke, a double-faced cam operatively connected to said yoke, a roller on said weight coacting alternately with the two faces of said cam as the weight is raised and lowered.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

ALEXANDER F. WARD.

Witnesses:

J. H. WEATHERFORD, G. W. MILLER. 

